Cisco Nexus 5000 Series - Incoming Rcfs; Rejecting Incoming Rcfs; Autoreconfiguring Merged Fabrics

Incoming RCFs
You can configure the rcf-reject option on a per-interface, per-VSAN basis. By default, the rcf-reject option
is disabled (that is, RCF request frames are not automatically rejected).
The rcf-reject option takes effect immediately.
No fcdomain restart is required.
You do not need to configure the RCF reject option on virtual Fibre Channel interfaces.Note
Rejecting Incoming RCFs
You can reject incoming RCF request frames.
SUMMARY STEPS
1.
configure terminal
2.
fcdomain rcf-reject vsan vsan-id
3.
no fcdomain rcf-reject vsan vsan-id
DETAILED STEPS
PurposeCommand or Action
Enters global configuration mode.configure terminal
Example:
switch# configure terminal
switch(config)#
Step 1
Enables the RCF filter on the specified interface in the
specified VSAN. The VSAN ID ranges from 1 to 4093.
fcdomain rcf-reject vsan vsan-id
Example:
switch(config-if)# fcdomain rcf-reject vsan 10
Step 2
Disables (default) the RCF filter on the specified interface
in the specified VSAN. The VSAN ID ranges from 1 to
4093.
no fcdomain rcf-reject vsan vsan-id
Example:
switch(config-if)# no fcdomain rcf-reject vsan
10
Step 3
Autoreconfiguring Merged Fabrics
By default, the autoreconfigure option is disabled. When you join two switches belonging to two different
stable fabrics that have overlapping domains, the following situations can occur:
Cisco Nexus 5000 Series NX-OS SAN Switching Configuration Guide, Release 5.2(1)N1(1)
OL-27583-01 37
Configuring Fibre Channel Domain Parameters
Fibre Channel Domains